Brake pedal travel after new compensator

[oxfordpaul 0]

Hi all,

 

I've just had my rear axle bushes renewed but also had to have the brake compensator valve replaced as the nuts were seized. Problem is now the pedal has a lot more travel before the brakes bite. The mechanic has bled 4 times and hasd done the abs pump and the master cylinder but still not right. He said he hadn't connected up the compensator so it was fully open when bleeding. The system he used to bleed was a pressurised system using a compressor to force fluid into the reservoir (the compressor had a pipe with the exact cap to screw onto the reservoir). Could thios have damaged the master cylinder or is there just some wierd knack to bleeding the whole thing? He replaced the front hoses a few weeks back with no problem so I think it's to do with the compensator. HELP!

[Supercharged 2]

Rear brakes can be strange, I suspect they may be ok after a few hundred miles but could be the compensator is not correctly adjusted - try an emergency stop!

 

Did he bleed then pump the brake pedal then connect the handbrake cable? - this might help things if he didn't!

[oxfordpaul 0]

I'm not sure about the handbrake cable, don't think it was disconnected? I'll mention this to him, cheers.

[Niges16V 0]

I wouldn't worry about it just yet as it can take a few days/weeks to get back to normal. I had the same problem after bushes etc changed by a VW specialist (JMR) and it took about a month to sort itself as I don't do many miles. Rado's have some strange quirks that even the experts can't explain! As long as you can stop get out and enjoy some corners!!

[Martyn_McG 0]

i have the exact same problem! i have changed the rear calipers disks and pads and have bled the system many times since with a propper garage pressurised system and i still have a lot of brake travel . . . .

very annoying!!

[oxfordpaul 0]

Funny to my old post re-appear! I can report that the pedal feels better now unless I've just got used to it. However I don't think the new valve has been set properly. I have a fault now with ABS and when the system is deactivated (when light is on), sharp braking results in rear wheels locking up, esp the nearside as the car slews sideways. I guess there is too much braking force going to the rear which should only normally happen when the car is fully laden? Can anyone explain if my theory is right and how to correct the balance so that the compensator (which was newly fitted) works correctly?